Question

(6.8 x 10^4)+(2.3 x 10^4) as a scientific notation?

Answer 1

We have the fortune that the power of ten is equal in both adding up. So

`6.8\cdot10^4+2.3\cdot10^4=9.1\cdot10^4`

Because the integer before the dot is less than 10, we need not do modifications and our answer is 9.1x10^4.